How to Install Add-Ins
The Excel® Add-in
Microsoft® has provide the Add-In feature to allow developers to add
their own products to Excel's suite of built-in functions. With the
Add-in, third parties can include their own macros and functions and
add customized menus and wizards to the application.
From the users perspective, Add-in's are easy. All you do is:
- Place the files Equation of State.xla and Equation of State.hlp
in a common known directory. Microsoft recommends you put add-in
files in the subdirectory:
c:\Program Files\Microsoft Office\Office\Library
With this location, Excel will find the add-in automatically.
Otherwise, you will have to browse for it.
- Activate the Add-In via the Add-Ins dialog box shown in Figure 1.
If you must, browse to your known directory. Place a check by the
desired Add-in before you select OK (Figure 1). In the example below
, the Add-in to be installed is "Moon: Equation of State".